compass-core/conf/templates/ansible_installer/openstack_mitaka_xenial/hosts/allinone.tmpl

#set controllers = $getVar('allinone_compute', [])
#if not $isinstance($controllers, list)
    #set controllers = [$controllers]
#end if
# allinone
#for controller in $controllers
    #set controller_ip = $controller.management.ip
    #set controller_hostname = $controller.hostname
$controller_ip $controller_hostname
#end for